Example ( Analog Communication )

In an experiment in physics, the wavelength of a photon particle was observed to be 500 nm. What will be the frequency of the wave?

Solution: As given here, the wavelength of the photon particle = 500 nm.

i.e. $\lambda = 500 nm$

i.e. $\lambda = 500 \times 10^{-9} m$

Also speed of light,

C = $3\times 10^8 m s{-1}$

In order to calculate the frequency of the photon particle, we will use the formulas:

$\lambda = \frac {c}{f}$

Rearranging the formula,

f = $\frac {c}{\lambda}$

= $\frac {3\times 10^8}{500 \times 10^{-9}}$

= $6 \times 10 ^{14} Hz$